The concept of supply and demand is often called the heart and soul of economics. It is the foundation for much of what is studied in the field. Understanding how supply and demand affect the economy helps us recognize economics everywhere in our daily lives.
Schoolhouse Rock teaches barter and trade - economics lesson for students. This video is part of a playlist with many hours of homeschooling videos and lessons: http://www.youtube.com/playlist?list=PL79156F04DE48560E Please share and enjoy with students, teachers and your kids. http://www.libertyclick.com